Search

Changhyun Yi

Examiner (ID: 10577, Phone: (571)270-7799 , Office: P/2826 )

Most Active Art Unit
2826
Art Unit(s)
2826, 2812
Total Applications
1322
Issued Applications
1144
Pending Applications
142
Abandoned Applications
68

Applications

Application numberTitle of the applicationFiling DateStatus
Array ( [id] => 17332708 [patent_doc_number] => 11223179 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2022-01-11 [patent_title] => Multi-millijoule holmium laser system [patent_app_type] => utility [patent_app_number] => 16/687333 [patent_app_country] => US [patent_app_date] => 2019-11-18 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 7323 [patent_no_of_claims] => 29 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 95 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16687333 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/687333
Multi-millijoule holmium laser system Nov 17, 2019 Issued
Array ( [id] => 19261277 [patent_doc_number] => 12021350 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-25 [patent_title] => Edge-emitting semiconductor laser [patent_app_type] => utility [patent_app_number] => 17/289124 [patent_app_country] => US [patent_app_date] => 2019-11-12 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 10 [patent_figures_cnt] => 26 [patent_no_of_words] => 6117 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17289124 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/289124
Edge-emitting semiconductor laser Nov 11, 2019 Issued
Array ( [id] => 19315006 [patent_doc_number] => 12040837 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-07-16 [patent_title] => Laser emitting system [patent_app_type] => utility [patent_app_number] => 17/283371 [patent_app_country] => US [patent_app_date] => 2019-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 11 [patent_no_of_words] => 2847 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 93 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17283371 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/283371
Laser emitting system Oct 24, 2019 Issued
Array ( [id] => 17339934 [patent_doc_number] => 20220006265 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2022-01-06 [patent_title] => NITRIDE SEMICONDUCTOR LASER DEVICE AND METHOD OF MANUFACTURING NITRIDE SEMICONDUCTOR LASER DEVICE [patent_app_type] => utility [patent_app_number] => 17/292975 [patent_app_country] => US [patent_app_date] => 2019-10-25 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 10155 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 130 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17292975 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/292975
Nitride semiconductor laser device and method of manufacturing nitride semiconductor laser device Oct 24, 2019 Issued
Array ( [id] => 19229988 [patent_doc_number] => 12009633 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-06-11 [patent_title] => Laser device and method for manufacturing a laser device [patent_app_type] => utility [patent_app_number] => 17/285244 [patent_app_country] => US [patent_app_date] => 2019-10-17 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 6 [patent_no_of_words] => 5159 [patent_no_of_claims] => 19 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 56 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17285244 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/285244
Laser device and method for manufacturing a laser device Oct 16, 2019 Issued
Array ( [id] => 16957264 [patent_doc_number] => 11061117 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-13 [patent_title] => Devices with ultra-small vertical cavity surface emitting laser emitters incorporating beam steering [patent_app_type] => utility [patent_app_number] => 16/654538 [patent_app_country] => US [patent_app_date] => 2019-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 24 [patent_figures_cnt] => 47 [patent_no_of_words] => 17437 [patent_no_of_claims] => 23 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 210 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16654538 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/654538
Devices with ultra-small vertical cavity surface emitting laser emitters incorporating beam steering Oct 15, 2019 Issued
Array ( [id] => 19906770 [patent_doc_number] => 12283791 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2025-04-22 [patent_title] => Semiconductor laser chip and preparation method therefor [patent_app_type] => utility [patent_app_number] => 17/296142 [patent_app_country] => US [patent_app_date] => 2019-10-16 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 9 [patent_no_of_words] => 0 [patent_no_of_claims] => 9 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 223 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17296142 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/296142
Semiconductor laser chip and preparation method therefor Oct 15, 2019 Issued
Array ( [id] => 17225111 [patent_doc_number] => 11177624 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-11-16 [patent_title] => Tunable laser [patent_app_type] => utility [patent_app_number] => 16/588370 [patent_app_country] => US [patent_app_date] => 2019-09-30 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 19 [patent_figures_cnt] => 22 [patent_no_of_words] => 12235 [patent_no_of_claims] => 8 [patent_no_of_ind_claims] => 2 [patent_words_short_claim] => 181 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16588370 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/588370
Tunable laser Sep 29, 2019 Issued
Array ( [id] => 15718953 [patent_doc_number] => 20200106244 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-02 [patent_title] => LIGHT EMITTING DEVICE AND PROJECTOR [patent_app_type] => utility [patent_app_number] => 16/585268 [patent_app_country] => US [patent_app_date] => 2019-09-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7205 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -3 [patent_words_short_claim] => 138 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16585268 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/585268
LIGHT EMITTING DEVICE AND PROJECTOR Sep 26, 2019 Abandoned
Array ( [id] => 17544549 [patent_doc_number] => 11309688 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2022-04-19 [patent_title] => Nitride semiconductor light-emitting element, method for manufacturing nitride semiconductor light-emitting element, and nitride semiconductor light-emitting device [patent_app_type] => utility [patent_app_number] => 16/584173 [patent_app_country] => US [patent_app_date] => 2019-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 60 [patent_figures_cnt] => 73 [patent_no_of_words] => 32540 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 4 [patent_words_short_claim] => 264 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16584173 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/584173
Nitride semiconductor light-emitting element, method for manufacturing nitride semiconductor light-emitting element, and nitride semiconductor light-emitting device Sep 25, 2019 Issued
Array ( [id] => 19415143 [patent_doc_number] => 12080987 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2024-09-03 [patent_title] => Methods and apparatus for laser mode transformation [patent_app_type] => utility [patent_app_number] => 17/277153 [patent_app_country] => US [patent_app_date] => 2019-09-26 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 13 [patent_figures_cnt] => 16 [patent_no_of_words] => 11787 [patent_no_of_claims] => 15 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 279 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17277153 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/277153
Methods and apparatus for laser mode transformation Sep 25, 2019 Issued
Array ( [id] => 15718943 [patent_doc_number] => 20200106239 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-04-02 [patent_title] => CONTROL CIRCUIT FOR A LASER DIODE [patent_app_type] => utility [patent_app_number] => 16/577103 [patent_app_country] => US [patent_app_date] => 2019-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 1860 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -18 [patent_words_short_claim] => 18 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16577103 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/577103
Control circuit for a laser diode Sep 19, 2019 Issued
Array ( [id] => 16974035 [patent_doc_number] => 11070020 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-07-20 [patent_title] => Sinusoidal phase modulation of mode-locked lasers [patent_app_type] => utility [patent_app_number] => 16/577198 [patent_app_country] => US [patent_app_date] => 2019-09-20 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 7 [patent_figures_cnt] => 16 [patent_no_of_words] => 4373 [patent_no_of_claims] => 7 [patent_no_of_ind_claims] => 3 [patent_words_short_claim] => 110 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16577198 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/577198
Sinusoidal phase modulation of mode-locked lasers Sep 19, 2019 Issued
Array ( [id] => 17232934 [patent_doc_number] => 20210359491 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2021-11-18 [patent_title] => OPTICAL APPARATUS [patent_app_type] => utility [patent_app_number] => 17/274778 [patent_app_country] => US [patent_app_date] => 2019-09-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 7977 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -10 [patent_words_short_claim] => 83 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 17274778 [rel_patent_id] =>[rel_patent_doc_number] =>)
17/274778
Optical apparatus Sep 5, 2019 Issued
Array ( [id] => 16448740 [patent_doc_number] => 10840673 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2020-11-17 [patent_title] => Electrically pumped surface-emitting photonic crystal laser [patent_app_type] => utility [patent_app_number] => 16/561571 [patent_app_country] => US [patent_app_date] => 2019-09-05 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 11 [patent_figures_cnt] => 23 [patent_no_of_words] => 4501 [patent_no_of_claims] => 12 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 388 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16561571 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/561571
Electrically pumped surface-emitting photonic crystal laser Sep 4, 2019 Issued
Array ( [id] => 17166644 [patent_doc_number] => 11152758 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-10-19 [patent_title] => Light emitting device [patent_app_type] => utility [patent_app_number] => 16/560310 [patent_app_country] => US [patent_app_date] => 2019-09-04 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 14 [patent_figures_cnt] => 27 [patent_no_of_words] => 15084 [patent_no_of_claims] => 14 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 194 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16560310 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/560310
Light emitting device Sep 3, 2019 Issued
Array ( [id] => 17033272 [patent_doc_number] => 11095095 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-08-17 [patent_title] => Low cost external cavity diode lasers [patent_app_type] => utility [patent_app_number] => 16/553039 [patent_app_country] => US [patent_app_date] => 2019-08-27 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 6 [patent_figures_cnt] => 7 [patent_no_of_words] => 3319 [patent_no_of_claims] => 11 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 157 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16553039 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/553039
Low cost external cavity diode lasers Aug 26, 2019 Issued
Array ( [id] => 16567219 [patent_doc_number] => 10892600 [patent_country] => US [patent_kind] => B1 [patent_issue_date] => 2021-01-12 [patent_title] => Narrow-linewidth single-mode vertical-cavity surface-emitting laser [patent_app_type] => utility [patent_app_number] => 16/541237 [patent_app_country] => US [patent_app_date] => 2019-08-15 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 5 [patent_figures_cnt] => 7 [patent_no_of_words] => 5981 [patent_no_of_claims] => 20 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 129 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16541237 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/541237
Narrow-linewidth single-mode vertical-cavity surface-emitting laser Aug 14, 2019 Issued
Array ( [id] => 15370633 [patent_doc_number] => 20200021081 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2020-01-16 [patent_title] => OPTICAL MODULE [patent_app_type] => utility [patent_app_number] => 16/539285 [patent_app_country] => US [patent_app_date] => 2019-08-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 4041 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -9 [patent_words_short_claim] => 171 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16539285 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/539285
Optical module Aug 12, 2019 Issued
Array ( [id] => 16774398 [patent_doc_number] => 10985522 [patent_country] => US [patent_kind] => B2 [patent_issue_date] => 2021-04-20 [patent_title] => Laser apparatus [patent_app_type] => utility [patent_app_number] => 16/533077 [patent_app_country] => US [patent_app_date] => 2019-08-06 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 20 [patent_figures_cnt] => 20 [patent_no_of_words] => 19404 [patent_no_of_claims] => 16 [patent_no_of_ind_claims] => 1 [patent_words_short_claim] => 345 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => patent [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 16533077 [rel_patent_id] =>[rel_patent_doc_number] =>)
16/533077
Laser apparatus Aug 5, 2019 Issued
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